Mate In 2 Puzzle (Rated 878): Mate in 2 — Bishop Pin

This chess endgame puzzle is a classic example of how a pin can decide the game instantly. White’s queen is active, but the black king is boxed in by its own pieces and a vulnerable back rank. In positions like this, the strongest move is often a forcing check that limits the king’s escape squares and uses the defender’s alignment against it. Even in classical chess, a quiet-looking endgame can hide a direct mating net.